Abstract
4587 Background: The effect of pemetrexed in MUC is not well characterized. Vinflunine is the standar second-line in MUC with adjusted benefits and no more drugs have been aproved. SOGUG reports a systematic review of MUC patient series with high activity of P in monotherapy. Methods: Patients with locally advanced urothelial carcinoma and/or MUC whom received P 500 mg/m(2) every 21 days with folic acid and vitamin B12 supplementation, were elected. These patients received P in second, third or fourth-line of chemotherapy. Results: 44 patients have been reported (39males), median age 62 [41-82]. Of all 44 patients; 21, 22, and 1 patients received P as second-line, third and fourth-line respectively. A median of 4 courses were administered [1-12] and disease control (SD+PR+CR) was achieved in 19 patients for an overall control rate of 43.2%. Four groups with significant differences in PFS (p=.033) were established (1.bone-metastasis, 2.visceral-metastasis, 3. nodal-visceral-metastasis and 4.nodal-metastasis). OS was significant between 2nd and 4th group (p=.036) . Mean PFS and OS were 125days [17-606] and 219days [17-1168] respectively for all 44 patients. Mean PFS and OS of 8 patients with bone metastasis were 75 days and 134 days. Mean PFS and OS of 10 patients with visceral metastasis were 65 days and 144 days. Mean PFS and OS of 8 patiens with nodal+visceral metastasis were 154 and 228 days. Mean PFS and OS of 18 patients with nodal metastasis were 166 days and 299 days. Conclusions: Our longer and multicenter follow-up shows that single agent P in monotherapy as second, third and fourth line in MUC is associated with high activity and long-time survival specially in metastatic nodal MUC. These results suggest that P as monotherapy requires to be further studied, more patients are being collected.
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